What technology does vonderste.in use?

We did not detect any specific technologies for vonderste.in in the latest scan.

Is vonderste.in secure (HTTPS)?

Yes. vonderste.in uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 10, 2026.

Who hosts vonderste.in?

Hosting provider information for vonderste.in is not available yet.

What is vonderste.in's SEO score?

vonderste.in scored 90/100 for SEO in the latest analysis (excellent).

What is vonderste.in's overall website score?

vonderste.in has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

vonderste.in

Home | Christian Vonderstein

Last scanned Jul 26, 2026, 10:54 AM

Overall score

Great

Summary

Christian Vonderstein’s Personal Website. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.

Christian Vonderstein’s Personal Website. Contains information about my projects and other stuff.

Top issues to fix

7 issues found · 2 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

2 issue(s) found

100

Performance

130 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Christian Vonderstein’s Personal Website. Contains information about my projects and other stuff.

Meta tags

Title: Home | Christian Vonderstein
Description: Christian Vonderstein’s Personal Website. Contains information about my projects and other stuff.
Canonical: https://vonderste.in/
Language: en-US
Charset: UTF-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: vonderste.in
Valid from: Jun 12, 2026
Valid to: Sep 10, 2026
Days until expiry: 44
SAN domains: vonderste.in

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 2 · H3 0

Links

1 internal · 1 external · 2 broken

Images

0 total · 0 missing alt

Scripts / Styles

2 scripts · 2 stylesheets

JS / CSS size

0 B · 634 B

Page size

9.7 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://vonderste.in
Final URL: https://vonderste.in
HTTP status: 200
HTTP version: HTTP/2
Response time: 130 ms
HTML size: 9.7 KB
Redirect chain: https://vonderste.in

See something wrong on this report? Request a correction

Frequently asked questions

What technology does vonderste.in use?: We did not detect any specific technologies for vonderste.in in the latest scan.
Is vonderste.in secure (HTTPS)?: Yes. vonderste.in uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 10, 2026.
Who hosts vonderste.in?: Hosting provider information for vonderste.in is not available yet.
What is vonderste.in's SEO score?: vonderste.in scored 90/100 for SEO in the latest analysis (excellent).
What is vonderste.in's overall website score?: vonderste.in has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.